From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PATCH][1/4] Enable 1GB for Xen HVM host page
Date: Tue, 23 Feb 2010 07:56:46 +0000
Message-ID: <C7A93ABE.AF26%keir.fraser@eu.citrix.com>
References: <4B82BC38.5090008@amd.com>
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To: Wei Huang <wei.huang2@amd.com>, "'xen-devel@lists.xensource.com'" <xen-devel@lists.xensource.com>, "Xu, Dongxiao" <dongxiao.xu@intel.com>
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What's the performance gain from 1GB mappings in HAP tables like? What about
just the (possible) extra 1GB mapping from this particular patch? Is it
worth making guest-visible efforts like this (admittedly small) one? After
all, the probably most frequently accessed 1GB starting at address 0x0
cannot be done with a 1GB mapping and we live with it.

 -- Keir

On 22/02/2010 17:17, "Wei Huang" <wei.huang2@amd.com> wrote:

> To support 1GB host page, this patch changes the MMIO starting address
> to 1GB boundary.
> 
> Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
> Signed-off-by: Wei Huang <wei.huang2@amd.com>
>